S
M
T
W
T
F
S
30
94°
63°
31
86°
63°
1
86°
67°
2
93°
69°
3
93°
70°
4
92°
71°
5
94°
68°
6
92°
61°
7
84°
61°
8
84°
60°
9
85°
62°
10
89°
66°
11
90°
64°
12
83°
63°
13
82°
62°
14
84°
67°
15
88°
57°
16
90°
57°
17
80°
56°
18
80°
56°
19
81°
57°
20
79°
56°
21
78°
55°
22
79°
54°
23
79°
55°
24
80°
58°
25
81°
60°
26
85°
61°
27
86°
58°
28
79°
61°
29
84°
58°
30
83°
52°
1
77°
55°
2
78°
51°
3
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bernie
Bernie's September 2026 forecast shows daily high temperatures ranging from 75° to 94°, with overnight lows between 51° and 71°. The average high for September is 84° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Bernie. See also: October | November | December.